What is Filter Press?

2025-03-25 09:29:25

A filter press is a mechanical solid-liquid separation device.It originated in China, according to historical records, the Chinese during the Han Dynasty used wooden presses in the production of wine and camellia oil.In the early 19th century, Germans invented the world's first plate frame filter press for filtering red wine. As time goes on, the design and performance of filter press has been continuously improved, gradually evolving into solid-liquid separation equipment commonly used in modern industry, widely applied in various fields such as chemical, mineral processing, metallurgy, food, and environmental protection.

The filter press uses pressure to force the solid and liquid separation in the slurry to achieve the purpose of dewatering/filtering. The slurry is injected by a feeding pump into a series of filter chambers composed of filter plates, where the solids are retained by the filter cloth inside the filter chamber, and the liquid is discharged from the equipment due to pressure penetrating the filter cloth.Thanks to its economy and reliability, filter press is one of the most widely used equipment in industrial liquid-solid separation. Unlike centrifugal machine and vacuum filters, the feeding pressure of a filter press can reach up to 20 bar or higher. The strong pressure enables it to meet the dewatering/filtering needs of various materials, which is why filter presses are often referred to as universal filtration equipment. XUDA Machinery is a trustworthy filter press manufacturing factory. It produces a variety of filter press types and capacities, which can meet the specific application needs for dewatering/filtering in different industries, including different models such as manual filter press, automatic filter presses, and high-efficiency filter presses.